#include<bits/stdc++.h>
using namespace std;
const int N=1e5;
int n,a[N+1],x;
int ans;

int main()
{
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	scanf("%d",&n);
	for(int i=1;i<=n;++i) scanf("%d",&x),a[x]++;
	for(int i=1;i<=N;++i) ans=max(ans,a[i]);
	printf("%d\n",ans);
	return 0;
}
